Most of my plants and veggies are in pots. Very few in the yard. Everyone of my plants have whitefly. I have absolutely no clue how to get rid of the boogers. I adjusted a cucumber vine today and I swear it looked like it had a bad case of dandruff. I've tried spraying with soapy water to no avail. Garlic water, sevin, you name it. I've been dealing with this for years. Should I call an exterminator or something?